During most of World War II, she operated from New York on escort duty to the Caribbean Sea.
As USS Intensity, she was designated an Action-class patrol gunboat and manned by the United States Coast Guard.
After the threat from German attack disappeared in May 1945, USS Intensity sailed to Charleston, South Carolina, arriving on 29 June 1945.
She was decommissioned later that year in Charleston and put into the trust of the United States Maritime Commission.
In 1950, she was sold to a Panamanian company, Balleneros Ltd., where she was used as a whaling ship called Olympic Promoter.